{

private static $instance;

public static function init()

{

if(!self::$instance instanceof self) {

self::$instance = new self;

}

return self::$instance;

}

function actions_filters()

{

add_action('fep_header_note', array(&$this, 'header_note'), 15);

add_action('fep_menu_button', array(&$this, 'menu'));

add_action('fep_user_settings_form', array(&$this, 'user_settings'));

add_filter('fep_filter_user_settings_before_save', array(&$this, 'user_settings_filter'));

add_action('fep_switch_announcements', array(&$this, "announcements"));

add_action('fep_switch_addannouncement', array(&$this, "add"));

add_action('fep_switch_viewannouncement', array(&$this, "dispAnnouncement"));

add_action('fep_switch_delannouncement', array(&$this, "delete"));

}

function header_note()

{

$numNew = $this->getAnnouncementsNum();

$sa = ( $numNew != 1 ) ? __('new announcements', 'fep'): __('new announcement', 'fep');

echo ' '. __('and', 'fep')." (<font color='red'>$numNew</font>) $sa";

}

function menu()

{

$class = 'fep-button';

if (isset($_GET['fepaction']) && $_GET['fepaction'] == 'announcements')

$class = 'fep-button-active';

echo "<a class='$class' href='".fep_action_url('announcements')."'>".sprintf(__('Announcement%s', 'fep'), $this->getAnnouncementsNum_btn() ).'</a>';

}

function user_settings()

{

echo "<input type='checkbox' name='allow_ann' value='1' ".checked(fep_get_user_option('allow_ann', 1), '1', false)."/> <i>".__("Email me when New announcement is published?", 'fep')."</i><br/>";

}

function user_settings_filter( $options )

{

$options['allow_ann'] = ( isset( $_POST['allow_ann'] ) )? 1 : '';

return $options;

}

function announcements()

{

global $wpdb, $user_ID;

$announcements = $this->getAnnouncements();

$num = sizeof($announcements);

$token = fep_create_nonce( 'announcement' );

if (current_user_can('manage_options'))

$msgsOut = "<a class='fep-button' href='".fep_action_url('addannouncement')."'>".__('Add New', 'fep').'</a>';

else

$msgsOut = '';

if ($num)

{

$msgsOut .= "<p><strong>".__("Announcements", 'fep').": ($num)</strong></p>";

$numPgs = $num / fep_get_option('messages_page', 50 );

if ($numPgs > 1)

{

$msgsOut .= "<p><strong>".__("Page", 'fep').": </strong> ";

for ($i = 0; $i < $numPgs; $i++)

if ($_GET['feppage'] != $i){

$msgsOut .= "<a href='".fep_action_url()."announcements&feppage=".$i."'>".($i+1)."</a> ";

} else {

$msgsOut .= "[<b>".($i+1)."</b>] ";}

$msgsOut .= "</p>";

}

$msgsOut .= "<table><tr class='fep-head'>";

if (current_user_can('manage_options'))

$msgsOut .= "<th width='20%'>".__("Added By", 'fep')."</th>";

$msgsOut .= "<th width='20%'>".__("Date", 'fep')."</th>

<th width='30%'>".__("Subject", 'fep')."</th>

<th width='10%'>".__("Action", 'fep')."</th></tr>";

$a = 0;

$page = (isset( $_GET['feppage']) && $_GET['feppage'] ) ? absint( $_GET['feppage'] ) : 0;

$offset = $page * fep_get_option('messages_page', 50 );

$sliced_announcement = array_slice( $announcements, $offset, fep_get_option('user_page', 50 ), true );

//var_dump($sliced_announcement);

foreach ($sliced_announcement as $msg)

{

if ( !$this->is_seen( $msg->id ) )

$status = "<font color='#FF0000'>".__("Unread", 'fep')."</font>";

else

$status = __("Read", 'fep');

$msgsOut .= "<tr class='fep-trodd".$a."'>";

if (current_user_can('manage_options'))

$msgsOut .= "<td>" .fep_get_userdata( $msg->from_user, 'display_name', 'id' ). "</td>";

$msgsOut .= "<td>".fep_format_date($msg->send_date)."</td>";

$msgsOut .= "<td><a href='".fep_action_url()."viewannouncement&id=$msg->id'>".fep_output_filter($msg->message_title, true)."</a><br/><small>$status</small></td>";

if ( $this->is_seen($msg->id) )

$msgsOut .= "<td><a href='".fep_action_url()."delannouncement&id=$msg->id&token=$token' onclick='return confirm(\"".__('Are you sure?', 'fep')."\");'>".__("Delete", 'fep')."</a></td>";

else

$msgsOut .= "<td><a href='".fep_action_url()."viewannouncement&id=$msg->id'>".__("View", 'fep')."</a></td>";

$msgsOut .= "</tr>";

//Alternate table colors

if ($a) $a = 0; else $a = 1;

}

$msgsOut .= "</table>";

}

else

{

$msgsOut .= "<div id='fep-error'>".__("Announcement is empty!", 'fep')."</div>";

}

echo $msgsOut;

return;

}

function dispAnnouncement()

{

global $wpdb, $user_ID;

$id = (isset( $_GET['id']) && $_GET['id'] ) ? absint( $_GET['id'] ) : 0;

$announcement = $this->getAnnouncements_by_id( $id );

if ( $announcement ) //Just viewing announcements

{

$this->make_seen( $id );

echo "<p><strong>".__("Announcement", 'fep').":</strong></p>";

echo "<table>";

echo "<tr class='fep-trodd1'><td class='fep-pmtext'><strong>".__("Subject", 'fep').":</strong> ".fep_output_filter($announcement->message_title, true).

"<br/><strong>".__("Date", 'fep').":</strong> ".fep_format_date($announcement->send_date);

if (current_user_can('manage_options')) {

echo "<br/><strong>".__("Added by", 'fep').":</strong> ".fep_get_userdata( $announcement->from_user, 'display_name', 'id' );

echo "<br/><strong>".__("Total Seen", 'fep').":</strong> ".$this->total_seen( $id ); }

do_action ('fep_display_after_announcement_subject', $id );

echo "</td></tr>";

echo "<tr class='fep-trodd0'><td class='fep-pmtext'><strong>".__("Message", 'fep').":</strong><br/>".fep_output_filter($announcement->message_contents);

do_action ('fep_display_after_announcement_content', $id );

echo "</td></tr></table>";

} else {

echo "<div id='fep-error'>".__("Announcement is empty!", 'fep')."</div>"; }

}

function add() {

$html = '<h2>' . __('Add Announcement', 'fep') . '</h2>';

if(isset($_POST['add-announcement'])){

$errors = $this->check();

if(count($errors->get_error_messages())>0){

$html .= fep_error($errors);

$html .= $this->form();

}

else{

$html .= '<div id="fep-success">' .__("Announcement successfully added.", 'fep'). ' </div>';

}

}

else{

$html .= $this->form();

}

echo $html;

return;

}

function form()

{

global $user_ID;

$token = fep_create_nonce('add_announcement');

$message_title = ( isset( $_REQUEST['message_title'] ) ) ? esc_html($_REQUEST['message_title']): '';

$message_content = ( isset( $_REQUEST['message_content'] ) ) ? esc_textarea($_REQUEST['message_content']): '';

$form = "<form action='".fep_action_url('addannouncement')."' method='post' enctype='multipart/form-data'>

".__("Subject", 'fep').":<br/>

<input type='text' name='message_title' value='$message_title' /><br/>";

ob_start();

do_action('fep_announcement_form_before_content');

echo __("Message", 'fep').":<br/>";

if ('wp_editor' == fep_get_option('editor_type') || current_user_can ('manage_options')){

wp_editor( $message_content, 'message_content', array('teeny' => false, 'media_buttons' => false, 'textarea_rows' => 8) );

} elseif ('teeny' == fep_get_option('editor_type','teeny')){

wp_editor( $message_content, 'message_content', array('teeny' => true, 'media_buttons' => false, 'textarea_rows' => 8) );

} else {

echo "<textarea name='message_content' placeholder='Message Content'>$message_content</textarea>"; }

do_action('fep_announcement_form_after_content');

$form .= ob_get_contents();

ob_end_clean();

$form .= "<input type='hidden' name='message_from' value='$user_ID' />

<input type='hidden' name='token' value='$token' /><br/>

<input type='submit' name='add-announcement' value='".__("Submit", 'fep')."' />

</form>";

return $form;

}

function check()

{

global $wpdb,$user_ID;

$errors = new WP_Error();

$message = $_POST;

$message['send_date'] = current_time('mysql');

$message['status'] = '2';

if (!$message['message_title'])

$errors->add('invalidSub', __('You must enter subject.', 'fep'));

if (!$message['message_content'])

$errors->add('invalidMgs', __('You must enter some announcement content!', 'fep'));

if ($message['message_from'] != $user_ID)

$errors->add('NoPermission', __("You do not have permission to add this announcement!", 'fep'));

if ( !current_user_can('manage_options') )

$errors->add('NoPermission', __("You do not have permission to add this announcement!", 'fep'));

if ( !fep_verify_nonce($message['token'], 'add_announcement') )

$errors->add('InvalidToken', __("Invalid Token. Please try again!", 'fep'));

do_action('fep_action_announcement_before_add', $errors);

$message = apply_filters('fep_filter_announcement_before_add', $message);

if(count($errors->get_error_codes())==0){

$wpdb->insert( FEP_MESSAGES_TABLE, array( 'from_user' => $message['message_from'], 'message_title' => $message['message_title'], 'message_contents' => $message['message_content'], 'send_date' => $message['send_date'], 'status' => $message['status'] ), array( '%d', '%s', '%s', '%s', '%d' ));

$message_id = $wpdb->insert_id;

delete_transient("fep_announcements_with_seen");

delete_transient("fep_announcements_with_deleted");

do_action('fep_after_add_announcement', $message_id, $message);

}

return $errors;

}

function getAnnouncements_with_deleted()

{

global $wpdb;

if (false === ($results = get_transient("fep_announcements_with_deleted"))){

$results = $wpdb->get_results($wpdb->prepare("SELECT t.*, m.field_value FROM ".FEP_MESSAGES_TABLE." AS t LEFT OUTER JOIN ".FEP_META_TABLE." AS m ON (t.id = m.message_id AND m.field_name = %s) WHERE t.status = %d GROUP BY t.id ORDER BY MAX(t.send_date) DESC",'announcement_deleted_user_id',2));

set_transient("fep_announcements_with_deleted",$results,60*60*24);

}

return $results;

}

function getAnnouncements_with_seen()

{

global $wpdb;

if (false === ($results = get_transient("fep_announcements_with_seen"))){

$results = $wpdb->get_results($wpdb->prepare("SELECT t.*, m.field_value FROM ".FEP_MESSAGES_TABLE." AS t LEFT OUTER JOIN ".FEP_META_TABLE." AS m ON (t.id = m.message_id AND m.field_name = %s) WHERE t.status = %d GROUP BY t.id ORDER BY MAX(t.send_date) DESC",'announcement_seen_user_id',2));

set_transient("fep_announcements_with_seen",$results,60*60*24);

}

return $results;

}

function getAnnouncements()

{

global $wpdb, $user_ID;

$results = $this->getAnnouncements_with_deleted();

//var_dump($results);

foreach ($results as $index => $result){

$arrayDelID = maybe_unserialize($result->field_value);

if (is_array ($arrayDelID)){

if (in_array($user_ID,$arrayDelID)){

unset($results[$index]);

}}}

return $results;

}

function getAnnouncements_by_id( $id )

{

global $wpdb, $user_ID;

$results = $this->getAnnouncements();

//var_dump($results);

$announcement = array();

foreach ($results as $result){

if ( $id == $result->id ) {

$announcement = $result;

break;

}}

return $announcement;

}

function is_seen( $id, $userid='' )

{

global $wpdb, $user_ID;

if ( !$userid )

$userid = $user_ID;

$results = $this->getAnnouncements_with_seen();

$seen = false;

foreach ($results as $result){

if ( $result->id == $id ) {

$arrayseenID = maybe_unserialize($result->field_value);

if (is_array ($arrayseenID)){

if (in_array( $userid, $arrayseenID )){

$seen = true;

}}

break;}}

return $seen;

}

function make_seen( $id, $userid='' )

{

global $wpdb, $user_ID;

if ( !$userid )

$userid = $user_ID;

if ( $this->is_seen( $id, $userid ) )

return false;

$userSeen = $wpdb->get_row($wpdb->prepare("SELECT meta_id, field_value FROM ".FEP_META_TABLE." WHERE message_id = %d AND field_name = %s LIMIT 1", $id,'announcement_seen_user_id'));

$userseenexists = ( $userSeen ) ? $userSeen->field_value : '';

$user_array = maybe_unserialize($userseenexists);

if (is_array($user_array)){

$user_array[] = $userid;

} else {

$user_array = array( $userid ); }

sort($user_array);

$serialized_value = maybe_serialize( array_unique($user_array) );

if ($userSeen){

$result = $wpdb->update( FEP_META_TABLE, array( 'field_value' => $serialized_value ), array( 'meta_id' => $userSeen->meta_id ), array( '%s' ), array( '%d' ) );

} else{

$result = $wpdb->insert( FEP_META_TABLE, array( 'message_id' => $id, 'field_name' => 'announcement_seen_user_id','field_value' => $serialized_value ), array( '%d', '%s', '%s' ) );

}

if ( $result )

delete_transient('fep_announcements_with_seen');

return true;

}

function total_seen( $id )

{

global $wpdb;

$results = $this->getAnnouncements_with_seen();

$count = 0;

foreach ($results as $result){

if ( $result->id == $id ) {

$arrayseenID = maybe_unserialize($result->field_value);

if (is_array ($arrayseenID)){

$count = sizeof($arrayseenID);

}

break;}}

return $count;

}

function getAnnouncementsNum()

{

global $wpdb, $user_ID;

$results = $this->getAnnouncements_with_seen();

$count = 0;

foreach ($results as $result){

$arrayDelID = maybe_unserialize($result->field_value);

if (is_array ($arrayDelID)){

if (!in_array($user_ID,$arrayDelID)){

$count += 1;

}

} else {$count += 1;}

}

return $count;

}

function getAnnouncementsNum_btn(){

if ($this->getAnnouncementsNum()){

$newmgs = " (<font color='red'>";

$newmgs .= $this->getAnnouncementsNum();

$newmgs .="</font>)";

} else {

$newmgs ="";}

return $newmgs;

}

function delete()

{

global $wpdb, $user_ID;

$delID = ( isset( $_GET['id'] ) ) ? absint( $_GET['id'] ): 0;

if ( current_user_can('manage_options') && fep_verify_nonce($_GET['token'], 'announcement') ) //Make sure only admins can delete announcements

{

do_action ('fep_announcement_before_delete', $delID );

$wpdb->query($wpdb->prepare("DELETE FROM ".FEP_MESSAGES_TABLE." WHERE id = %d", $delID));

$wpdb->query($wpdb->prepare("DELETE FROM ".FEP_META_TABLE." WHERE message_id = %d", $delID));

delete_transient("fep_announcements_with_seen");

delete_transient("fep_announcements_with_deleted");

echo '<div id="fep-success">' .__("Announcement successfully Deleted.", 'fep'). ' </div>';

return true;

}

elseif (!current_user_can('manage_options') && fep_verify_nonce($_GET['token'], 'announcement') )

{

if ( !$this->is_seen( $delID ) ){

echo '<div id="fep-error">' .__("Something wrong. Please try again.", 'fep'). ' </div>';

return false;

}

$userDel = $wpdb->get_row($wpdb->prepare("SELECT meta_id, field_value FROM ".FEP_META_TABLE." WHERE message_id = %d AND field_name = %s LIMIT 1", $delID,'announcement_deleted_user_id'));

$user_array = maybe_unserialize($userDel->field_value);

if (is_array($user_array)){

$user_array[] = $user_ID;

} else {

$user_array = array($user_ID);

}

sort($user_array);

$serialized_value = maybe_serialize( array_unique($user_array) );

if ($userDel){

$result = $wpdb->update( FEP_META_TABLE, array( 'field_value' => $serialized_value ), array( 'meta_id' => $userDel->meta_id ), array( '%s' ), array( '%d' ) );

}

else{

$result = $wpdb->insert( FEP_META_TABLE, array( 'message_id' => $delID, 'field_name' => 'announcement_deleted_user_id','field_value' => $serialized_value ), array( '%d', '%s', '%s' ) );

}

if ( $result ) {

delete_transient("fep_announcements_with_deleted");

echo '<div id="fep-success">' .__("Announcement successfully Deleted.", 'fep'). ' </div>';

return true;

}

} else {

echo '<div id="fep-error">' .__("Something wrong. Please try again.", 'fep'). ' </div>';

return false;

}

}